Bl. Rivas et al., ADSORPTION BEHAVIOR OF CU2-LINKED POLY[2,2-BIS(ACRYLAMIDO)ACETIC ACID]( AND UO22+ IONS ON CROSS), Journal of applied polymer science, 58(12), 1995, pp. 2201-2205
The synthesis of a water-insoluble metal ion complexing resin was carr
ied out by radical polymerization of 2,2-bis(acrylamido) acetic acid.
The resin was characterized by elemental analyses, FTIR spectroscopy,
and thermal analyses. The ability to bind copper(II), iron(II), iron(I
II), and uranium(VI) as well as the elution of the metal ions from the
loaded resins were studied. For uranyl ions, pH 5 was the optimum sor
ption pH value. Sorption selectivity from the binary mixture Cu(II) U(VI) was studied at pH 2. The thermal stability is increased by adsor
ption of UO22+. According to these results a coordination mechanism is
suggested for sorption of copper and uranium. (C) 1995 John Wiley & S
ons, Inc.